| (a) Generators who use analytical methods to classify their
waste must use methods described in "Test Methods for the Evaluation of Solid
Waste, Physical/Chemical Methods" (EPA SW-846), "Methods for Chemical Analysis
of Water and Wastes" (EPA-600/4-79/020), "Standard Methods for the Examination
of Water and Wastewater", American Society for Testing and Materials (ASTM)
Standard Methods, or any other approved EPA methods or may request in writing
that the executive director review and approve an alternate method. The generator
must also choose representative sample(s) of their waste, as described in
Chapter 9 of EPA SW-846. A generator who proposes to use an alternate method
must validate the alternate method by demonstrating that the method is equal
to or superior in accuracy, precision, and sensitivity to the corresponding
SW-846, EPA-600, Standard Method or ASTM method identified in this subsection.
(b) The generator proposing an alternate method shall provide
the executive director with the following information:
(1) a full description of the proposed method including all
equipment used;
(2) a description of the types of wastes and waste matrices
analyzed or to be analyzed;
(3) comparative quality assurance results of the proposed method
and the corresponding SW-846 method;
(4) a complete assessment of any factors which may interfere
with the method; and
(5) a description of the Quality Control procedures necessary
to ensure the sensitivity, accuracy, and precision of the proposed method.
(c) Upon request of the executive director, the generator shall
provide additional information as necessary to enable the executive director
to adequately review the alternate methods proposed by the generator.
|
| Source Note: The provisions of this §335.509 adopted to be effective November 27, 1992, 17 TexReg 8010; amended to be effective February 24, 1994, 19 TexReg 1042; amended to be effective May 30, 1995, 20 TexReg 3722; amended to be effective November 15, 2001, 26 TexReg 9135 |
